MADRID—Tapas, shopping, beaches, the famous Gaudi architecture: Catalonia, and in particular its capital Barcelona, has a lot to entice tourists with. But a chance to live like a local and rent a room through Airbnb may soon no longer be one of them.

Catalonia’s regional government said Tuesday that Airbnb is in “serious” breach of regional law and that it has ordered the company to pay €30,000 ($41,000) in fines within the month or begin adhering to Catalan law.

A German company is offering a $30 million bounty for the identities of the individuals responsible for downing Malaysian Airlines flight MH17 in eastern Ukraine this summer.

Pro-Russian separatists in Ukraine are suspected of firing surface-to-air missiles at the civilian aircraft, which crashed July 17 while flying from Amsterdam to Kuala Lumpur, killing all 298 people on board. A preliminary report carried out by Dutch investigators said that the crash was the result of structural damage caused by a large number of high-energy objects that struck the Boeing plane from the outside.

Ukrainian military forces and separatist fighters exchanged fire at Donetsk Airport on Wednesday, as the fragile ceasefire between the Kiev government and breakaway factions in eastern Ukraine frayed further.

The video released by pro-Russia news organization Novorossiya TV shows separatist fighters trading fire with an armored vehicle near the airport. Four minutes into the clip an explosion ignites close to the cameraman, following several minutes of the fighters shooting at the distant vehicles.